«Paid Membership» plugin with PayPal integration! (version 3.0, 2015-08-31)

Version 2.0 is out!

A link to the payment page has been placed to the top menu and it is proved to increase visitor-to-customer conversion rate.

A great work has been done for internationalization.
Now there are advanced money / currency settings:

An example of localized payment page:

An example of settings for Germany:

An example of settings for Czech Republic:

An example of settings for Israel: